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<head>
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    <title>Document</title>
    <link rel="stylesheet" href="css/index.css">
    <style>
        .box {
            width: 100px;
            height: 100px;
            border: 1px solid black;
        }

        .red {
            background-color: red;
        }

        .green {
            background-color: green;
        }

        .yellow {
            background-color: yellow;
        }

        .blue {
            background-color: blue;
        }

        .orange {
            background-color: orange;
            /* text-align: right; */
        }

        .big {
            padding: 50px;
            width: 100px;
            background-color: rgb(179, 178, 178);
        }

        .big:hover {
            background-color: rgb(172, 64, 64);
        }

        .big:hover .red {
            background-color: #fff;
        }

        a {
            background-color: rgb(72, 85, 114);
            width: 100px;
            height: 100px;
            /* padding: 40px 40px ; */
            margin: 40px;
        }

        .btn1 {
            width: 50px;
            /* margin:0 auto; */
            margin: 0 auto;
            
        }
        .lbox{
            width: 200px;
            height: 100px;
            background-color: rgb(129, 50, 50);
            display: inline-block;
            margin:0 auto;
        }
    </style>



</head>

<body>
    <div class="big">
        <div class="box red">1</div>
    </div>

    <div class="box green"></div>
    <div class="box yellow"></div>
    <div class="box blue"></div>
    <a href="/p/6310506269">竞技游戏</a>

    <button class="btn2"> 按钮2</button>
    <div class="box orange">
        <button class="btn1"> 按钮1</button>
    </div>
    <div class="lbox"></div>
</body>

</html>